{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64693",
    "entityType": "User",
    "nonce": "0xd5dfed15d4bc7160813c80ef22ba6c388281faecfe09d2f2efd1dc6653296c0d",
    "signature": "0x8909b7fafc46e9371c47d9245df986caeddd652e2c4b0b2a9335b295ab2a803c12f75b85a53424818f5c2b4f553338288d135c7e5ddded866c71d30e19cc18511c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}