{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144203",
    "entityType": "User",
    "nonce": "0xe96f5eb47de7493ad4e6cb7f6cceb7c91b924b585197c10bd56ba2fd54c905fe",
    "signature": "0x0021c99433f56323c91872ab2e6a2ad88c958e23be3b9ece4a2c3dab7095ef473e5ca994e1afb7756acb56b3185813d2e780479ff8d237c648f360c3979e42551b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}