{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1ec5e2fb95ce75a64c2523d9ca76660afc366abf745b5b773408438e2d59a2c",
    "signature": "0xc56f13dbf087bde1887303017ca7a420d1bc94d2f02aba4ac75a29ce7eadcf514537f88b2cd14e5c4ac0445ccb06d02add4a362024526ab58c721c8b31d03cf61b",
    "signer": "0xc6b23Cb42b83e01246Ca4E7A79A41d51Dd830B4E",
    "userId": "883371622"
  }
}