{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988878261",
    "entityType": "User",
    "nonce": "0x7ace09525cc0f95317a8ffe46cb75b62a2e6910f18445cbeba143a75e3c64096",
    "signature": "0x0507d9e9ae704f37d41bd42c1dac6517d1f6b40e201382958e3d36033b13a7c4250ec9912bf29f34fcb738a7ba2f831e163a122d3fb49446884ca0affed0a0521b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}