{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0x8f9565c610d1fb27336bbc1b9d3f195be7bf7de6e23725e29bd034b5ce03fcae",
    "signature": "0xecf994533e314e2547803f95cb86f332e2d078f6a24a06ec06bcb1885a3ac87776a40319c1c64ec9dac99b9548fc3a32989497a32ddc66d9760279b3ca8fc36a1c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}