{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x391b3007b9169d74633fc4540d5cb8401d17c6213bfb3563c74449bd8a73edfe",
    "signature": "0xde3059edf69334c94a8204a83dd42775942206ac20cf18ff9220ebadf5fd7afb0c305f1b4fb493990b09ebe78e6eaa43f506c061c0dc9f55aabdc85656f68de41b",
    "signer": "0x0F822Eeda362e74bF696F900786f042056530CC8",
    "userId": "481969594"
  }
}