{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211200",
    "entityType": "User",
    "nonce": "0x5f22677b685567b9670c900210568a3fdbb77cb7c79f83a6a3154d27319a06f5",
    "signature": "0x6f65bc36a0173fc9084cadfd365e71db5967269a95cc3f3cc43dd81c4b6023b45f1538aec3136b805c9cfafcaadae86ce5e00018854fdfedfbdd5e11e9cdfa661b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}