{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb29bcfc627efbeed138e824e74d26d545c8d0e462d4b4a9b93152dccb9116f57",
    "signature": "0x5d0bf966441fd8539f8ec36d9d7db3ed024a961e23d55a0509736706f91ae7e34922cda14ad780c8d7a07870209bc09ae035133e8916ef2c462b64373ca6ee671c",
    "signer": "0x42ACAE3036b3588C40815D48C679eAa9B1567944",
    "userId": "443325072"
  }
}