{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146164104",
    "entityType": "User",
    "nonce": "0xaf2a81f390d4bff6f8bd9aed24d3e98c82c77d66aa6a3345abf3d722f2e4455d",
    "signature": "0xbc10c2c1a59d3107993cea15a2d247fb56ed0fccbf9f953ec0df8396d701647a092f04744d7db47c2997ca6b26ef02f22cfd962781c636d673e1cec527432a9b1c",
    "signer": "0x038f9CA74f1De4A6D94d94c4C354E1F5B11fd38A",
    "userId": "453233591"
  }
}