{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319704",
    "entityType": "User",
    "nonce": "0x37c80d74a4eb00367cd48b49349141f4db8cb1f9e56b95476a2e55881996565e",
    "signature": "0xd888c217ede01365cf74fbb5c019d904a6330bcec23c200c95fc196640f868cd756dbc9c07545fd80ea68a4e2050469f66e7870e631c865163ca82a7feee543a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}