{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0xa80776f5690b2ddf258f086d85a10eaa5740617f1dfd886a771c4501dd286f1e",
    "signature": "0xa67b1e7c83c1a7e322f00e57e2f8157ce26e542a110fb128efcb82e24be3b3d41e44378be145acabcce6c3b8ba7e7b0c0f8791ee1b40607e370644f3d65c46441b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}