{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0xd3d5dd1aeb41dacdfb1f895252aa8275bdd9b55917dda200b3438fe8d8c2a80b",
    "signature": "0xf6368eb93f16e2bf82e8a86b6c27037e81dec0abecb869883d2329b76bbb3829102ba2b0d16e448c9bab94ea3dfc1658a5edcb80810d1cfc6906cc6807af5eac1b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}