{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73445",
    "entityType": "User",
    "nonce": "0xb678057253a1a51ad5e54d861f82fc9216a7ced58fbc5495359069f0eaa8c88b",
    "signature": "0xdbd99bd1cdef47032f2eaedf5f1c7273e5ba4e1f852b5ad407385ecbdce425dd665c9b10ff878c09be7295c2bcb4a035f83da518fedf72ef9cc17cbc90ba9dd91b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}