{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343622799",
    "entityType": "User",
    "nonce": "0x1cedef0307e73b15daad7d51c6e7268cf39fc4ce1566bc048c20ab5345b5eb8b",
    "signature": "0xeb89e362512c64f7802e21e5f2d6005e9c1232a6429df7d5f0ab335a56ba44be10e32c068f0da51cb24726de00f23e1dcc0a61dacd420a05390e4fc26f6cc8f71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}