{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55368559",
    "entityType": "User",
    "nonce": "0x7d7b2aba981dd09bf16f596f91ee3a96ddd78c2133496b39b3a5a2f279010554",
    "signature": "0x3a1cd129acba89bf6bcb2ce3390403789bf547753d620a8892a4b1c6dfd4e59c3d4312f70523ee9ad062c1a00f9583b8e70b2733981b195687de1aa4791c80b51b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}