{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786875",
    "entityType": "User",
    "nonce": "0x4ec668b3373ba73c84fac1a7f05cb8212344c010f5bae1d95828303bcd86b2d9",
    "signature": "0xcdf5ca54ae1f168733ea9f4057d2c231dff4ad6c1edbc52ed9e1e983ab46662c671b2a3447109b0481e0f50f4ce64df194135fc9e0ad396dcdfb19f4b92db59a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}