{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x630eb12362557fe5a0e6dba771e52a5574c1dedcbc7029898d13ac8b43aea711",
    "signature": "0x9e87015dd99f81bad2d0e3c99405ca7f999840e3a3805e7af5a3d78cdf4eee934fa0bacdee0154f468b9bf7c900df8e246c39429ea6c33858b409f76655009611b",
    "signer": "0xDad54011Aa75e9CE1531cDb8924456782a2C11a0",
    "userId": "241807741"
  }
}