{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51702",
    "entityType": "User",
    "nonce": "0x3d9e4b905cf535c504ffedf3a32fc0ae4a20adc476b318cbfa332d4d199ca54c",
    "signature": "0x48a51b8eef9cf1951c01e56cf7862b3e4aa78e3c6b384955a246f34154de05957e8eff4234cd7755ff0dd36f351d90d0596e722b78da5c445e916d65cfb4618a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}