{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6ad0cd58b620c895c75975a93af2f53b3c1a51cda4676b68cd12c5ebe115fdc7",
    "signature": "0xf0ce953228ffbd04b0883a3e7697219277b9640a36dcd9ee79c1af7629ff287a5b2f940697c7e8f744674bd989f8b3ba35832f48fc7ad229558e3323b6a0017d1c",
    "signer": "0xF21829b5edc91BC6d20Df83C6d561B07e9D7FB9F",
    "userId": "609891644"
  }
}