{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55539",
    "entityType": "User",
    "nonce": "0x864e03c36882525b02e7abeef4d0186162300c7fa558e8756794bd8bc273d7e8",
    "signature": "0x3e0cb0343ff97633fbd711a56cb24b0f7023603ca119eae989e4521e0e0c6d4d18062ada7ceaf592d5a948898b293032d865d72fd29ddddd4cc01c0b394bab921b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}