{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1784420",
    "entityType": "User",
    "nonce": "0x2aa7e758f185bc30d5918a2960b222e331f93156a84115c2368dfb30c3d3d797",
    "signature": "0x31bbd62b0bf01f03ca02f8a9645bad0c19783decd11c60843438fc181439b5120adba3b5bd78eebc4e394fb6cdcc29235baea3968d34ea7c3a5d64e81825a1fc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}