{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977815577",
    "entityType": "User",
    "nonce": "0xecae66715c3a9889c1f3ae5c1a05bc00df36deb9c905d6146d6dadb7fe83ad56",
    "signature": "0xa1127f475d939c34c8c21bb85e44c52bd58ab2decd6b82f363732b0e61ab20f06bb889649b4340d85d28cb241425876f9223bd25dfc61add41e8f6efc20919591b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}