{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba22476514cdb6878a1eaf74fd28f362932fbc38d863c04e982aa3e0b45afc9a",
    "signature": "0xc068fb70317d8bd0ce3a30eb20ebcaba6ffd4eaf885f0b5b784ba0bdfb753d6201e539edc4d2b0aaa18fe69d2aeaa6a8465cd18ca03c66e6eae7cd40e093af851c",
    "signer": "0x8B4234597381a86d88d9B7dd566254338c6a31D0",
    "userId": "276584815"
  }
}