{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x591c7b332bd44c32f4e1b69c0463f193ca0ad6ecd49c4699ce92098f5db8c2ae",
    "signature": "0xd640ff141a1bd810f165f28487df27cc8b0777957f096616ff59b243c251bfc43cfdebdacb91447336199d5788fbb0d1db0bcb64d7d86dfe8f14cfbc3de4e45e1b",
    "signer": "0x88d7917d2b0b9cEAc31406fCB20e2A2809c6BcC8",
    "userId": "953805481"
  }
}