{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5335",
    "entityType": "User",
    "nonce": "0xa7300fa3dec6031236fa0cd3f8b854b560897b9fcecb66eebd50b10dd66edf15",
    "signature": "0x6e3abbc30fd0bbe3a46a7db41610aac72391b343bbd79f9aac877a5bd17019c87e0b41afd0bf552c6f610e8fb9e192a6d0d0ceb9e84cfcbdaa8bc24970ce7ac61c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}