{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55114",
    "entityType": "User",
    "nonce": "0x3f0ec960e1959feea8291a6f83685d01198d193e71a363f0dcd8919a5c2fbad1",
    "signature": "0x7f602c9902b4c0658ce45697a5a4b58beaa14dc996d376c7e5c40b267a7650627f3d25f3d9b2990de157d429c8baedf54f22d371a918ccdabbd668f8a183f8e31c",
    "signer": "0x3c30507939bFBf87FAC58ff7512A140BdE48C0Cb",
    "userId": "216427183"
  }
}