{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0930ea2edd3bb553311e1521716b982e7187e1c4a8ede09b1f99ea3b184bad29",
    "signature": "0xa2ac7d9b11aca62f864edf34fd72bfcb7d29549c85581f23b7975c6794473dda68a1e5186e034f16fbd8ebd679a57e7c6c1e548fc1f790544311beb5fd727b001c",
    "signer": "0xaeb41A91F33b8Da504E11bF402D454f4034ef709",
    "userId": "365339732"
  }
}