{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77111",
    "entityType": "User",
    "nonce": "0x8ea11a6e1c136abf970a9110fc07ec9adedb2dcb9983f7fe5aee3fe98324819d",
    "signature": "0x144263850bb0ffccd28155e5695f01ca34888a48ec8c31dcda017efad57247a023ecc6ece76e0f9fdccbe24891fb974c58e3ae158ee02e6cd569d3cac0fd14c81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}