{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "802710",
    "entityType": "User",
    "nonce": "0x2fb0170e22bfb5a50748305f6fa2350956bc3dc0c6b50559126b4a31b5cda8f0",
    "signature": "0xc599c6265efebcc61a5eefac0fc65eb4cf6815ccd6ed4b78d832d021c4783b8f348ad65d7eeef404cfa027ada22de7bbfa9d737a35b0bf0b8d4feab5565e2de21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}