{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xd346efbd4009476dd6348a614bb750006527d7bbd1be74ef8b430328814d2e22",
    "signature": "0xbb853e758d9d0e15412313a7c890c70445648348e4ce6255182989cbd06b3e8b592690854a639f91b8d944eef775628b58eeeed446e7e49afdeb7271441c39e01c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}