{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0xb25c63829974f9844a7f9b6aabae85ea93fd588894d7896501de041ced452ed7",
    "signature": "0x9d94b9dbf79bfcddb73e59707e4323bd037e0e642bf2b2b6467f545e2969a0ad73527a0d01b469d3b34a8e4084cb83238b24eb665bccab72d810031e8153d9121c",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}