{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58973",
    "entityType": "User",
    "nonce": "0x789f2a847a3ec9afbaf9237571ce0e00316e03e6095337398307c94f9f3e252d",
    "signature": "0x9f1e1a6e9e1cbb10393f4d0881e9c432db0598401fe2a2ce831aba423e6b479277fe2ef35c3324eacad4303b07cf81e5a6a826e6668bcfb5f0b7b234ca908cb41b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}