{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53172",
    "entityType": "User",
    "nonce": "0xb3e3f1bd80ef2759a69e3754c41d6566574808b3cf068019241c934a9ee4712c",
    "signature": "0xe4c6ef4263fe20b4004006c78de409dc7b9e8e08c01c2e6be88413799ca8a9d019535fb27413d4d8ef965e52e9d17154e7fd1b16dbd0282427148dbb5512863c1c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}