{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80750",
    "entityType": "User",
    "nonce": "0xfe9ebdd109b18da2cc971f01007228e16d3fc7640f44ea2d3c6a60a380dcaea1",
    "signature": "0x51df72593f476120ca592fad00065f54e76bd3dfef3b7a6dc07c5abe8093777b7b3e0760872e445ffa042b89214b858378068280755d7bf45e0f1f1d54a331901b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}