{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0xfa50966b3b47894053c9bc9e8eac9c579cee6d743be19ed0b4365d4f86509c61",
    "signature": "0x190cdaaaf23e93b7b3419fad7ed5eab5c5d4f0ed03b050472793252a7376721a04cd9ff76d9936eae070fdac45d2c48fb21aadcc470e8545b7e3fd51d3cca4891b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}