{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x63051a164d76bb76e9cbc6fc20e2bae21b9417a732d1ad00dfbf30ab09673e51",
    "signature": "0xaa8ff899ea7a69f87939dd0d98cd3aeb1b4b29d33157792fab77b8fd7c502073429d97a3ad0a7394b7233002bdaca09e4a0975f98c0bb77408555b68113aa95c1c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}