{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa1d97337b2330dc2a637f63c0bea2eb2316eaaea2e1d28de21448b6163566258",
    "signature": "0x1eb11155976e4d8291372cee88b676aa40a0fbc8a48f756ffb09ab1949bcc5f72d437f4eccc64a0f137a1b6cb119929394077e8baee8df6e7461f679527b05501b",
    "signer": "0xe5C8656B7b39CB23624854b7B862F491EAbA2dB7",
    "userId": "713838474"
  }
}