{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74147",
    "entityType": "User",
    "nonce": "0x0dab4814afb4a8c837921cf9fcf0b83e88ab81b02419699500911f523fce8485",
    "signature": "0xa5bf9d18485fccffe04499a81f0f852a44184fecc71d24dc5051d3b4cb84b9e90cfba4ae31442a1a3644398f80e13c03524822af613031c0b7b76ad2a1f7d3431b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}