{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa310bf6306ee0b8fc1340dc3061d6c006261bff6bce3571ff2e87331079dfacf",
    "signature": "0x6d8ef910593f36e200fdb61ca2b3ff78ef8040712424625c44783160a791638d5aee2503f482818512df8b041095fd449daa0de638bc842f57cd427e59beb28a1b",
    "signer": "0x3893EE54C4B235163CC6aE2c82daE550f2AA6EEA",
    "userId": "850643939"
  }
}