{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0x8fde9345a7f4aabaf3fd2e645173233ea2c317d0a8c66fccd2e22e491a21b5fc",
    "signature": "0x65c9bc4c6be72418a5b83dceb7338f5787f210987b765489f40342c5112cae5870e4558f5d339ba5ae500d64856f92eeee879bf69459fe3b029d8767a02ff3531c",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}