{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5562",
    "entityType": "User",
    "nonce": "0x0c664710f07083e0f1c5252e33b7694cc3c602a36ba3c0e30a761fb5e40dfce2",
    "signature": "0xd80752a5d280957d38a2174b6017d569c6e33af06fba8d94ced7e6811f20f8f653c1b0967a655b31ec9850f474b96fb513ad219db1728b95dbe2afb9aa5d26361b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}