{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313260",
    "entityType": "User",
    "nonce": "0xea8e96ade12295f9b98fdb0112cf0c98a79cb39f9a0b2713d5ab2978c534ac17",
    "signature": "0x3a538df7dd0777f95d51458874254cbaaeeae9e150d5b38590e261e237c5bcf67ab88376447bb5b840cbf9111b25a71ad958f6a75015ad1ffacbd8888403cfc11b",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}