{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313757",
    "entityType": "User",
    "nonce": "0xa5c1a02f3c669a068992f7e3e26251f294282e01d77a4ae982e3b59ba00e883b",
    "signature": "0x66234c71d52da7f723091fceeaaa6d96b026d3fa4d8ef4e7878de81e1d1496ae7c375da267a47ef536c3d78121fb250e8753e619654c2c16980b029228e380f71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}