{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcc884925d7ef43fd5e4849c4f28a4926f17a9c13d9a8cb135a4a49de6e570d64",
    "signature": "0x0e63aca38d7275340c0f91f0fbe72e43cf9c65702d5787f37b72359e74aab4844ca554dc3f30bae872cfe9c38b8aa5f6db10b58f332eb901ad0f715c6c95e3601c",
    "signer": "0xCF10D444bcA82E222517AA6402Ba1E644d7973c7",
    "userId": "804228665"
  }
}