{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464087",
    "entityType": "User",
    "nonce": "0xfc40bd1b20ba12f588855019646f5ad2455231039f2ac373bf4a198a833b7b26",
    "signature": "0x839573c2c103be5872a0a96282c525238b5489958e9947c67b23fd649ecd386359de4dbbe5a1983e825b9d0298bde9f257671bce6384fd2e5dd16592ad6bdcf91c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}