{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1363743",
    "entityType": "User",
    "nonce": "0xd8a51c1be74fcc13d8ad098443db9c8c375a52e63343e924492b2eda9dc862d0",
    "signature": "0x6e9a4f4e6b84cb7b3e7963d7571e019c5e94b4c3b1c6eaa1540917bd71da6cd4016e474e19735520b44454a6872e5f564df944dfecf4b3c25c243d34aee01eb91c",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}