{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1684",
    "entityType": "User",
    "nonce": "0x970322061846f09c2360b42968fc9d26d74add04f5417533cbbc637902c94cef",
    "signature": "0x90fcb22313a65cfdd5d2d0380fac397fb3bf12bb0b40523fe54ed517752a5a356cf96cc44444747940173c3b2b8434d819eed5cec9d39b73c9c24ae7acdff5c51c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}