{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0xbb2df97a051d13959a104e0a107d5123819414036967638fa4cbf1503355330c",
    "signature": "0x6a29b46c154bc1c92fbb64b45149289529c5a997fe5f2b9498dba38adb7989477999543f4e366c1add28708506663aabf0e20e6c8e0edf44cec7cfbe6ed8ac631c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}