{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1685453",
    "entityType": "User",
    "nonce": "0x62d346a71fbc62a64833f0b7b16da057fa276ca7d22cf3cd4d16771d49489534",
    "signature": "0x4e0172deb3b65ba0ad6bf96203a0f2e102b80974910b68657425fe8e0c14f12a66cca07626b12891664a54be153a66a64ced5a0f2bf4db8e8d073b263fdc338d1b",
    "signer": "0x5391496E932a3143AeB225d332e3485D8f3f2a2D",
    "userId": "712969344"
  }
}